Move quantizer init functions to quantize.c

Group related functions together.

Change-Id: I92fd779225b75a7204650f1decb713142c655d71

5 files changed, 427 insertions, 407 deletions

diff --git a/vp8/encoder/encodeframe.c b/vp8/encoder/encodeframe.c
index 6e5282b92..a1533e665 100644
--- a/vp8/encoder/encodeframe.c
+++ b/vp8/encoder/encodeframe.c
@@ -60,370 +60,6 @@ unsigned int uv_modes[4]  = {0, 0, 0, 0};
 unsigned int b_modes[14]  = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
 #endif
 
-static const int qrounding_factors[129] =
-{
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48
-};
-
-static const int qzbin_factors[129] =
-{
-    84, 84, 84, 84, 84, 84, 84, 84,
-    84, 84, 84, 84, 84, 84, 84, 84,
-    84, 84, 84, 84, 84, 84, 84, 84,
-    84, 84, 84, 84, 84, 84, 84, 84,
-    84, 84, 84, 84, 84, 84, 84, 84,
-    84, 84, 84, 84, 84, 84, 84, 84,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80
-};
-
-static const int qrounding_factors_y2[129] =
-{
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48, 48, 48, 48, 48, 48, 48, 48,
-    48
-};
-
-static const int qzbin_factors_y2[129] =
-{
-    84, 84, 84, 84, 84, 84, 84, 84,
-    84, 84, 84, 84, 84, 84, 84, 84,
-    84, 84, 84, 84, 84, 84, 84, 84,
-    84, 84, 84, 84, 84, 84, 84, 84,
-    84, 84, 84, 84, 84, 84, 84, 84,
-    84, 84, 84, 84, 84, 84, 84, 84,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80, 80, 80, 80, 80, 80, 80, 80,
-    80
-};
-
-#define EXACT_QUANT
-#ifdef EXACT_QUANT
-static void vp8cx_invert_quant(int improved_quant, short *quant,
-                               unsigned char *shift, short d)
-{
-    if(improved_quant)
-    {
-        unsigned t;
-        int l;
-        t = d;
-        for(l = 0; t > 1; l++)
-            t>>=1;
-        t = 1 + (1<<(16+l))/d;
-        *quant = (short)(t - (1<<16));
-        *shift = l;
-    }
-    else
-    {
-        *quant = (1 << 16) / d;
-        *shift = 0;
-    }
-}
-
-void vp8cx_init_quantizer(VP8_COMP *cpi)
-{
-    int i;
-    int quant_val;
-    int Q;
-
-    int zbin_boost[16] = {0, 0, 8, 10, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44, 44, 44};
-
-    for (Q = 0; Q < QINDEX_RANGE; Q++)
-    {
-        // dc values
-        quant_val = vp8_dc_quant(Q, cpi->common.y1dc_delta_q);
-        cpi->Y1quant_fast[Q][0] = (1 << 16) / quant_val;
-        vp8cx_invert_quant(cpi->sf.improved_quant, cpi->Y1quant[Q] + 0,
-                           cpi->Y1quant_shift[Q] + 0, quant_val);
-        cpi->Y1zbin[Q][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
-        cpi->Y1round[Q][0] = (qrounding_factors[Q] * quant_val) >> 7;
-        cpi->common.Y1dequant[Q][0] = quant_val;
-        cpi->zrun_zbin_boost_y1[Q][0] = (quant_val * zbin_boost[0]) >> 7;
-
-        quant_val = vp8_dc2quant(Q, cpi->common.y2dc_delta_q);
-        cpi->Y2quant_fast[Q][0] = (1 << 16) / quant_val;
-        vp8cx_invert_quant(cpi->sf.improved_quant, cpi->Y2quant[Q] + 0,
-                           cpi->Y2quant_shift[Q] + 0, quant_val);
-        cpi->Y2zbin[Q][0] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
-        cpi->Y2round[Q][0] = (qrounding_factors_y2[Q] * quant_val) >> 7;
-        cpi->common.Y2dequant[Q][0] = quant_val;
-        cpi->zrun_zbin_boost_y2[Q][0] = (quant_val * zbin_boost[0]) >> 7;
-
-        quant_val = vp8_dc_uv_quant(Q, cpi->common.uvdc_delta_q);
-        cpi->UVquant_fast[Q][0] = (1 << 16) / quant_val;
-        vp8cx_invert_quant(cpi->sf.improved_quant, cpi->UVquant[Q] + 0,
-                           cpi->UVquant_shift[Q] + 0, quant_val);
-        cpi->UVzbin[Q][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;;
-        cpi->UVround[Q][0] = (qrounding_factors[Q] * quant_val) >> 7;
-        cpi->common.UVdequant[Q][0] = quant_val;
-        cpi->zrun_zbin_boost_uv[Q][0] = (quant_val * zbin_boost[0]) >> 7;
-
-        // all the ac values = ;
-        for (i = 1; i < 16; i++)
-        {
-            int rc = vp8_default_zig_zag1d[i];
-
-            quant_val = vp8_ac_yquant(Q);
-            cpi->Y1quant_fast[Q][rc] = (1 << 16) / quant_val;
-            vp8cx_invert_quant(cpi->sf.improved_quant, cpi->Y1quant[Q] + rc,
-                               cpi->Y1quant_shift[Q] + rc, quant_val);
-            cpi->Y1zbin[Q][rc] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
-            cpi->Y1round[Q][rc] = (qrounding_factors[Q] * quant_val) >> 7;
-            cpi->common.Y1dequant[Q][rc] = quant_val;
-            cpi->zrun_zbin_boost_y1[Q][i] = (quant_val * zbin_boost[i]) >> 7;
-
-            quant_val = vp8_ac2quant(Q, cpi->common.y2ac_delta_q);
-            cpi->Y2quant_fast[Q][rc] = (1 << 16) / quant_val;
-            vp8cx_invert_quant(cpi->sf.improved_quant, cpi->Y2quant[Q] + rc,
-                               cpi->Y2quant_shift[Q] + rc, quant_val);
-            cpi->Y2zbin[Q][rc] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
-            cpi->Y2round[Q][rc] = (qrounding_factors_y2[Q] * quant_val) >> 7;
-            cpi->common.Y2dequant[Q][rc] = quant_val;
-            cpi->zrun_zbin_boost_y2[Q][i] = (quant_val * zbin_boost[i]) >> 7;
-
-            quant_val = vp8_ac_uv_quant(Q, cpi->common.uvac_delta_q);
-            cpi->UVquant_fast[Q][rc] = (1 << 16) / quant_val;
-            vp8cx_invert_quant(cpi->sf.improved_quant, cpi->UVquant[Q] + rc,
-                               cpi->UVquant_shift[Q] + rc, quant_val);
-            cpi->UVzbin[Q][rc] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
-            cpi->UVround[Q][rc] = (qrounding_factors[Q] * quant_val) >> 7;
-            cpi->common.UVdequant[Q][rc] = quant_val;
-            cpi->zrun_zbin_boost_uv[Q][i] = (quant_val * zbin_boost[i]) >> 7;
-        }
-    }
-}
-#else
-void vp8cx_init_quantizer(VP8_COMP *cpi)
-{
-    int i;
-    int quant_val;
-    int Q;
-
-    int zbin_boost[16] = {0, 0, 8, 10, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44, 44, 44};
-
-    for (Q = 0; Q < QINDEX_RANGE; Q++)
-    {
-        // dc values
-        quant_val = vp8_dc_quant(Q, cpi->common.y1dc_delta_q);
-        cpi->Y1quant[Q][0] = (1 << 16) / quant_val;
-        cpi->Y1zbin[Q][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
-        cpi->Y1round[Q][0] = (qrounding_factors[Q] * quant_val) >> 7;
-        cpi->common.Y1dequant[Q][0] = quant_val;
-        cpi->zrun_zbin_boost_y1[Q][0] = (quant_val * zbin_boost[0]) >> 7;
-
-        quant_val = vp8_dc2quant(Q, cpi->common.y2dc_delta_q);
-        cpi->Y2quant[Q][0] = (1 << 16) / quant_val;
-        cpi->Y2zbin[Q][0] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
-        cpi->Y2round[Q][0] = (qrounding_factors_y2[Q] * quant_val) >> 7;
-        cpi->common.Y2dequant[Q][0] = quant_val;
-        cpi->zrun_zbin_boost_y2[Q][0] = (quant_val * zbin_boost[0]) >> 7;
-
-        quant_val = vp8_dc_uv_quant(Q, cpi->common.uvdc_delta_q);
-        cpi->UVquant[Q][0] = (1 << 16) / quant_val;
-        cpi->UVzbin[Q][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;;
-        cpi->UVround[Q][0] = (qrounding_factors[Q] * quant_val) >> 7;
-        cpi->common.UVdequant[Q][0] = quant_val;
-        cpi->zrun_zbin_boost_uv[Q][0] = (quant_val * zbin_boost[0]) >> 7;
-
-        // all the ac values = ;
-        for (i = 1; i < 16; i++)
-        {
-            int rc = vp8_default_zig_zag1d[i];
-
-            quant_val = vp8_ac_yquant(Q);
-            cpi->Y1quant[Q][rc] = (1 << 16) / quant_val;
-            cpi->Y1zbin[Q][rc] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
-            cpi->Y1round[Q][rc] = (qrounding_factors[Q] * quant_val) >> 7;
-            cpi->common.Y1dequant[Q][rc] = quant_val;
-            cpi->zrun_zbin_boost_y1[Q][i] = (quant_val * zbin_boost[i]) >> 7;
-
-            quant_val = vp8_ac2quant(Q, cpi->common.y2ac_delta_q);
-            cpi->Y2quant[Q][rc] = (1 << 16) / quant_val;
-            cpi->Y2zbin[Q][rc] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
-            cpi->Y2round[Q][rc] = (qrounding_factors_y2[Q] * quant_val) >> 7;
-            cpi->common.Y2dequant[Q][rc] = quant_val;
-            cpi->zrun_zbin_boost_y2[Q][i] = (quant_val * zbin_boost[i]) >> 7;
-
-            quant_val = vp8_ac_uv_quant(Q, cpi->common.uvac_delta_q);
-            cpi->UVquant[Q][rc] = (1 << 16) / quant_val;
-            cpi->UVzbin[Q][rc] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
-            cpi->UVround[Q][rc] = (qrounding_factors[Q] * quant_val) >> 7;
-            cpi->common.UVdequant[Q][rc] = quant_val;
-            cpi->zrun_zbin_boost_uv[Q][i] = (quant_val * zbin_boost[i]) >> 7;
-        }
-    }
-}
-#endif
-void vp8cx_mb_init_quantizer(VP8_COMP *cpi, MACROBLOCK *x)
-{
-    int i;
-    int QIndex;
-    MACROBLOCKD *xd = &x->e_mbd;
-    int zbin_extra;
-
-    // Select the baseline MB Q index.
-    if (xd->segmentation_enabled)
-    {
-        // Abs Value
-        if (xd->mb_segement_abs_delta == SEGMENT_ABSDATA)
-
-            QIndex = xd->segment_feature_data[MB_LVL_ALT_Q][xd->mode_info_context->mbmi.segment_id];
-        // Delta Value
-        else
-        {
-            QIndex = cpi->common.base_qindex + xd->segment_feature_data[MB_LVL_ALT_Q][xd->mode_info_context->mbmi.segment_id];
-            QIndex = (QIndex >= 0) ? ((QIndex <= MAXQ) ? QIndex : MAXQ) : 0;    // Clamp to valid range
-        }
-    }
-    else
-        QIndex = cpi->common.base_qindex;
-
-    // Y
-    zbin_extra = ( cpi->common.Y1dequant[QIndex][1] *
-                   ( cpi->zbin_over_quant +
-                     cpi->zbin_mode_boost +
-                     x->act_zbin_adj ) ) >> 7;
-
-    for (i = 0; i < 16; i++)
-    {
-        x->block[i].quant = cpi->Y1quant[QIndex];
-        x->block[i].quant_fast = cpi->Y1quant_fast[QIndex];
-        x->block[i].quant_shift = cpi->Y1quant_shift[QIndex];
-        x->block[i].zbin = cpi->Y1zbin[QIndex];
-        x->block[i].round = cpi->Y1round[QIndex];
-        x->e_mbd.block[i].dequant = cpi->common.Y1dequant[QIndex];
-        x->block[i].zrun_zbin_boost = cpi->zrun_zbin_boost_y1[QIndex];
-        x->block[i].zbin_extra = (short)zbin_extra;
-    }
-
-    // UV
-    zbin_extra = ( cpi->common.UVdequant[QIndex][1] *
-                   ( cpi->zbin_over_quant +
-                     cpi->zbin_mode_boost +
-                     x->act_zbin_adj ) ) >> 7;
-
-    for (i = 16; i < 24; i++)
-    {
-        x->block[i].quant = cpi->UVquant[QIndex];
-        x->block[i].quant_fast = cpi->UVquant_fast[QIndex];
-        x->block[i].quant_shift = cpi->UVquant_shift[QIndex];
-        x->block[i].zbin = cpi->UVzbin[QIndex];
-        x->block[i].round = cpi->UVround[QIndex];
-        x->e_mbd.block[i].dequant = cpi->common.UVdequant[QIndex];
-        x->block[i].zrun_zbin_boost = cpi->zrun_zbin_boost_uv[QIndex];
-        x->block[i].zbin_extra = (short)zbin_extra;
-    }
-
-    // Y2
-    zbin_extra = ( cpi->common.Y2dequant[QIndex][1] *
-                   ( (cpi->zbin_over_quant / 2) +
-                     cpi->zbin_mode_boost +
-                     x->act_zbin_adj ) ) >> 7;
-
-    x->block[24].quant_fast = cpi->Y2quant_fast[QIndex];
-    x->block[24].quant = cpi->Y2quant[QIndex];
-    x->block[24].quant_shift = cpi->Y2quant_shift[QIndex];
-    x->block[24].zbin = cpi->Y2zbin[QIndex];
-    x->block[24].round = cpi->Y2round[QIndex];
-    x->e_mbd.block[24].dequant = cpi->common.Y2dequant[QIndex];
-    x->block[24].zrun_zbin_boost = cpi->zrun_zbin_boost_y2[QIndex];
-    x->block[24].zbin_extra = (short)zbin_extra;
-
-    /* save this macroblock QIndex for vp8_update_zbin_extra() */
-    x->q_index = QIndex;
-}
-void vp8_update_zbin_extra(VP8_COMP *cpi, MACROBLOCK *x)
-{
-    int i;
-    int QIndex = x->q_index;
-    int zbin_extra;
-
-    // Y
-    zbin_extra = ( cpi->common.Y1dequant[QIndex][1] *
-                   ( cpi->zbin_over_quant +
-                     cpi->zbin_mode_boost +
-                     x->act_zbin_adj ) ) >> 7;
-    for (i = 0; i < 16; i++)
-    {
-        x->block[i].zbin_extra = (short)zbin_extra;
-    }
-
-    // UV
-    zbin_extra = ( cpi->common.UVdequant[QIndex][1] *
-                   ( cpi->zbin_over_quant +
-                     cpi->zbin_mode_boost +
-                     x->act_zbin_adj ) ) >> 7;
-
-    for (i = 16; i < 24; i++)
-    {
-        x->block[i].zbin_extra = (short)zbin_extra;
-    }
-
-    // Y2
-    zbin_extra = ( cpi->common.Y2dequant[QIndex][1] *
-                   ( (cpi->zbin_over_quant / 2) +
-                     cpi->zbin_mode_boost +
-                     x->act_zbin_adj ) ) >> 7;
-
-    x->block[24].zbin_extra = (short)zbin_extra;
-}
-
-void vp8cx_frame_init_quantizer(VP8_COMP *cpi)
-{
-    // Clear Zbin mode boost for default case
-    cpi->zbin_mode_boost = 0;
-
-    // MB level quantizer setup
-    vp8cx_mb_init_quantizer(cpi, &cpi->mb);
-}
-
 
 /* activity_avg must be positive, or flat regions could get a zero weight
  *  (infinite lambda), which confounds analysis.
diff --git a/vp8/encoder/onyx_if.c b/vp8/encoder/onyx_if.c
index 2a7723581..fc7a86373 100644
--- a/vp8/encoder/onyx_if.c
+++ b/vp8/encoder/onyx_if.c
@@ -2653,45 +2653,6 @@ static void resize_key_frame(VP8_COMP *cpi)
 }
 
 
-static void set_quantizer(VP8_COMP *cpi, int Q)
-{
-    VP8_COMMON *cm = &cpi->common;
-    MACROBLOCKD *mbd = &cpi->mb.e_mbd;
-    int update = 0;
-    int new_delta_q;
-    cm->base_qindex = Q;
-
-    /* if any of the delta_q values are changing update flag has to be set */
-    /* currently only y2dc_delta_q may change */
-
-    cm->y1dc_delta_q = 0;
-    cm->y2ac_delta_q = 0;
-    cm->uvdc_delta_q = 0;
-    cm->uvac_delta_q = 0;
-
-    if (Q < 4)
-    {
-        new_delta_q = 4-Q;
-    }
-    else
-        new_delta_q = 0;
-
-    update |= cm->y2dc_delta_q != new_delta_q;
-    cm->y2dc_delta_q = new_delta_q;
-
-
-    // Set Segment specific quatizers
-    mbd->segment_feature_data[MB_LVL_ALT_Q][0] = cpi->segment_feature_data[MB_LVL_ALT_Q][0];
-    mbd->segment_feature_data[MB_LVL_ALT_Q][1] = cpi->segment_feature_data[MB_LVL_ALT_Q][1];
-    mbd->segment_feature_data[MB_LVL_ALT_Q][2] = cpi->segment_feature_data[MB_LVL_ALT_Q][2];
-    mbd->segment_feature_data[MB_LVL_ALT_Q][3] = cpi->segment_feature_data[MB_LVL_ALT_Q][3];
-
-    /* quantizer has to be reinitialized for any delta_q changes */
-    if(update)
-        vp8cx_init_quantizer(cpi);
-
-}
-
 static void update_alt_ref_frame_and_stats(VP8_COMP *cpi)
 {
     VP8_COMMON *cm = &cpi->common;
@@ -3034,7 +2995,7 @@ static void Pass1Encode(VP8_COMP *cpi, unsigned long *size, unsigned char *dest,
     (void) size;
     (void) dest;
     (void) frame_flags;
-    set_quantizer(cpi, 26);
+    vp8_set_quantizer(cpi, 26);
 
     scale_and_extend_source(cpi->un_scaled_source, cpi);
     vp8_first_pass(cpi);
@@ -3694,7 +3655,7 @@ static void encode_frame_to_data_rate
             Q = 127;
             */
 
-        set_quantizer(cpi, Q);
+        vp8_set_quantizer(cpi, Q);
         this_q = Q;
 
         // setup skip prob for costing in mode/mv decision
diff --git a/vp8/encoder/onyx_int.h b/vp8/encoder/onyx_int.h
index 8b17178b3..e18d468b4 100644
--- a/vp8/encoder/onyx_int.h
+++ b/vp8/encoder/onyx_int.h
@@ -240,7 +240,7 @@ enum
     BLOCK_MAX_SEGMENTS
 };
 
-typedef struct
+typedef struct VP8_COMP
 {
 
     DECLARE_ALIGNED(16, short, Y1quant[QINDEX_RANGE][16]);
diff --git a/vp8/encoder/quantize.c b/vp8/encoder/quantize.c
index 86ed267fb..49e8e1b9b 100644
--- a/vp8/encoder/quantize.c
+++ b/vp8/encoder/quantize.c
@@ -12,8 +12,9 @@
 #include <math.h>
 #include "vpx_mem/vpx_mem.h"
 
+#include "onyx_int.h"
 #include "quantize.h"
-#include "vp8/common/entropy.h"
+#include "vp8/common/quant_common.h"
 
 #define EXACT_QUANT
 
@@ -299,3 +300,418 @@ void vp8_quantize_mbuv(MACROBLOCK *x)
     for (i = 16; i < 24; i++)
         x->quantize_b(&x->block[i], &x->e_mbd.block[i]);
 }
+
+
+static const int qrounding_factors[129] =
+{
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48
+};
+
+
+static const int qzbin_factors[129] =
+{
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80
+};
+
+
+static const int qrounding_factors_y2[129] =
+{
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48
+};
+
+
+static const int qzbin_factors_y2[129] =
+{
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80
+};
+
+
+#define EXACT_QUANT
+#ifdef EXACT_QUANT
+static void invert_quant(int improved_quant, short *quant,
+                               unsigned char *shift, short d)
+{
+    if(improved_quant)
+    {
+        unsigned t;
+        int l;
+        t = d;
+        for(l = 0; t > 1; l++)
+            t>>=1;
+        t = 1 + (1<<(16+l))/d;
+        *quant = (short)(t - (1<<16));
+        *shift = l;
+    }
+    else
+    {
+        *quant = (1 << 16) / d;
+        *shift = 0;
+    }
+}
+
+
+void vp8cx_init_quantizer(VP8_COMP *cpi)
+{
+    int i;
+    int quant_val;
+    int Q;
+
+    int zbin_boost[16] = {0, 0, 8, 10, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44, 44, 44};
+
+    for (Q = 0; Q < QINDEX_RANGE; Q++)
+    {
+        // dc values
+        quant_val = vp8_dc_quant(Q, cpi->common.y1dc_delta_q);
+        cpi->Y1quant_fast[Q][0] = (1 << 16) / quant_val;
+        invert_quant(cpi->sf.improved_quant, cpi->Y1quant[Q] + 0,
+                     cpi->Y1quant_shift[Q] + 0, quant_val);
+        cpi->Y1zbin[Q][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
+        cpi->Y1round[Q][0] = (qrounding_factors[Q] * quant_val) >> 7;
+        cpi->common.Y1dequant[Q][0] = quant_val;
+        cpi->zrun_zbin_boost_y1[Q][0] = (quant_val * zbin_boost[0]) >> 7;
+
+        quant_val = vp8_dc2quant(Q, cpi->common.y2dc_delta_q);
+        cpi->Y2quant_fast[Q][0] = (1 << 16) / quant_val;
+        invert_quant(cpi->sf.improved_quant, cpi->Y2quant[Q] + 0,
+                     cpi->Y2quant_shift[Q] + 0, quant_val);
+        cpi->Y2zbin[Q][0] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
+        cpi->Y2round[Q][0] = (qrounding_factors_y2[Q] * quant_val) >> 7;
+        cpi->common.Y2dequant[Q][0] = quant_val;
+        cpi->zrun_zbin_boost_y2[Q][0] = (quant_val * zbin_boost[0]) >> 7;
+
+        quant_val = vp8_dc_uv_quant(Q, cpi->common.uvdc_delta_q);
+        cpi->UVquant_fast[Q][0] = (1 << 16) / quant_val;
+        invert_quant(cpi->sf.improved_quant, cpi->UVquant[Q] + 0,
+                     cpi->UVquant_shift[Q] + 0, quant_val);
+        cpi->UVzbin[Q][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;;
+        cpi->UVround[Q][0] = (qrounding_factors[Q] * quant_val) >> 7;
+        cpi->common.UVdequant[Q][0] = quant_val;
+        cpi->zrun_zbin_boost_uv[Q][0] = (quant_val * zbin_boost[0]) >> 7;
+
+        // all the ac values = ;
+        for (i = 1; i < 16; i++)
+        {
+            int rc = vp8_default_zig_zag1d[i];
+
+            quant_val = vp8_ac_yquant(Q);
+            cpi->Y1quant_fast[Q][rc] = (1 << 16) / quant_val;
+            invert_quant(cpi->sf.improved_quant, cpi->Y1quant[Q] + rc,
+                         cpi->Y1quant_shift[Q] + rc, quant_val);
+            cpi->Y1zbin[Q][rc] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
+            cpi->Y1round[Q][rc] = (qrounding_factors[Q] * quant_val) >> 7;
+            cpi->common.Y1dequant[Q][rc] = quant_val;
+            cpi->zrun_zbin_boost_y1[Q][i] = (quant_val * zbin_boost[i]) >> 7;
+
+            quant_val = vp8_ac2quant(Q, cpi->common.y2ac_delta_q);
+            cpi->Y2quant_fast[Q][rc] = (1 << 16) / quant_val;
+            invert_quant(cpi->sf.improved_quant, cpi->Y2quant[Q] + rc,
+                         cpi->Y2quant_shift[Q] + rc, quant_val);
+            cpi->Y2zbin[Q][rc] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
+            cpi->Y2round[Q][rc] = (qrounding_factors_y2[Q] * quant_val) >> 7;
+            cpi->common.Y2dequant[Q][rc] = quant_val;
+            cpi->zrun_zbin_boost_y2[Q][i] = (quant_val * zbin_boost[i]) >> 7;
+
+            quant_val = vp8_ac_uv_quant(Q, cpi->common.uvac_delta_q);
+            cpi->UVquant_fast[Q][rc] = (1 << 16) / quant_val;
+            invert_quant(cpi->sf.improved_quant, cpi->UVquant[Q] + rc,
+                         cpi->UVquant_shift[Q] + rc, quant_val);
+            cpi->UVzbin[Q][rc] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
+            cpi->UVround[Q][rc] = (qrounding_factors[Q] * quant_val) >> 7;
+            cpi->common.UVdequant[Q][rc] = quant_val;
+            cpi->zrun_zbin_boost_uv[Q][i] = (quant_val * zbin_boost[i]) >> 7;
+        }
+    }
+}
+#else
+void vp8cx_init_quantizer(VP8_COMP *cpi)
+{
+    int i;
+    int quant_val;
+    int Q;
+
+    int zbin_boost[16] = {0, 0, 8, 10, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44, 44, 44};
+
+    for (Q = 0; Q < QINDEX_RANGE; Q++)
+    {
+        // dc values
+        quant_val = vp8_dc_quant(Q, cpi->common.y1dc_delta_q);
+        cpi->Y1quant[Q][0] = (1 << 16) / quant_val;
+        cpi->Y1zbin[Q][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
+        cpi->Y1round[Q][0] = (qrounding_factors[Q] * quant_val) >> 7;
+        cpi->common.Y1dequant[Q][0] = quant_val;
+        cpi->zrun_zbin_boost_y1[Q][0] = (quant_val * zbin_boost[0]) >> 7;
+
+        quant_val = vp8_dc2quant(Q, cpi->common.y2dc_delta_q);
+        cpi->Y2quant[Q][0] = (1 << 16) / quant_val;
+        cpi->Y2zbin[Q][0] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
+        cpi->Y2round[Q][0] = (qrounding_factors_y2[Q] * quant_val) >> 7;
+        cpi->common.Y2dequant[Q][0] = quant_val;
+        cpi->zrun_zbin_boost_y2[Q][0] = (quant_val * zbin_boost[0]) >> 7;
+
+        quant_val = vp8_dc_uv_quant(Q, cpi->common.uvdc_delta_q);
+        cpi->UVquant[Q][0] = (1 << 16) / quant_val;
+        cpi->UVzbin[Q][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;;
+        cpi->UVround[Q][0] = (qrounding_factors[Q] * quant_val) >> 7;
+        cpi->common.UVdequant[Q][0] = quant_val;
+        cpi->zrun_zbin_boost_uv[Q][0] = (quant_val * zbin_boost[0]) >> 7;
+
+        // all the ac values = ;
+        for (i = 1; i < 16; i++)
+        {
+            int rc = vp8_default_zig_zag1d[i];
+
+            quant_val = vp8_ac_yquant(Q);
+            cpi->Y1quant[Q][rc] = (1 << 16) / quant_val;
+            cpi->Y1zbin[Q][rc] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
+            cpi->Y1round[Q][rc] = (qrounding_factors[Q] * quant_val) >> 7;
+            cpi->common.Y1dequant[Q][rc] = quant_val;
+            cpi->zrun_zbin_boost_y1[Q][i] = (quant_val * zbin_boost[i]) >> 7;
+
+            quant_val = vp8_ac2quant(Q, cpi->common.y2ac_delta_q);
+            cpi->Y2quant[Q][rc] = (1 << 16) / quant_val;
+            cpi->Y2zbin[Q][rc] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
+            cpi->Y2round[Q][rc] = (qrounding_factors_y2[Q] * quant_val) >> 7;
+            cpi->common.Y2dequant[Q][rc] = quant_val;
+            cpi->zrun_zbin_boost_y2[Q][i] = (quant_val * zbin_boost[i]) >> 7;
+
+            quant_val = vp8_ac_uv_quant(Q, cpi->common.uvac_delta_q);
+            cpi->UVquant[Q][rc] = (1 << 16) / quant_val;
+            cpi->UVzbin[Q][rc] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
+            cpi->UVround[Q][rc] = (qrounding_factors[Q] * quant_val) >> 7;
+            cpi->common.UVdequant[Q][rc] = quant_val;
+            cpi->zrun_zbin_boost_uv[Q][i] = (quant_val * zbin_boost[i]) >> 7;
+        }
+    }
+}
+#endif
+
+
+void vp8cx_mb_init_quantizer(VP8_COMP *cpi, MACROBLOCK *x)
+{
+    int i;
+    int QIndex;
+    MACROBLOCKD *xd = &x->e_mbd;
+    int zbin_extra;
+
+    // Select the baseline MB Q index.
+    if (xd->segmentation_enabled)
+    {
+        // Abs Value
+        if (xd->mb_segement_abs_delta == SEGMENT_ABSDATA)
+
+            QIndex = xd->segment_feature_data[MB_LVL_ALT_Q][xd->mode_info_context->mbmi.segment_id];
+        // Delta Value
+        else
+        {
+            QIndex = cpi->common.base_qindex + xd->segment_feature_data[MB_LVL_ALT_Q][xd->mode_info_context->mbmi.segment_id];
+            QIndex = (QIndex >= 0) ? ((QIndex <= MAXQ) ? QIndex : MAXQ) : 0;    // Clamp to valid range
+        }
+    }
+    else
+        QIndex = cpi->common.base_qindex;
+
+    // Y
+    zbin_extra = ( cpi->common.Y1dequant[QIndex][1] *
+                   ( cpi->zbin_over_quant +
+                     cpi->zbin_mode_boost +
+                     x->act_zbin_adj ) ) >> 7;
+
+    for (i = 0; i < 16; i++)
+    {
+        x->block[i].quant = cpi->Y1quant[QIndex];
+        x->block[i].quant_fast = cpi->Y1quant_fast[QIndex];
+        x->block[i].quant_shift = cpi->Y1quant_shift[QIndex];
+        x->block[i].zbin = cpi->Y1zbin[QIndex];
+        x->block[i].round = cpi->Y1round[QIndex];
+        x->e_mbd.block[i].dequant = cpi->common.Y1dequant[QIndex];
+        x->block[i].zrun_zbin_boost = cpi->zrun_zbin_boost_y1[QIndex];
+        x->block[i].zbin_extra = (short)zbin_extra;
+    }
+
+    // UV
+    zbin_extra = ( cpi->common.UVdequant[QIndex][1] *
+                   ( cpi->zbin_over_quant +
+                     cpi->zbin_mode_boost +
+                     x->act_zbin_adj ) ) >> 7;
+
+    for (i = 16; i < 24; i++)
+    {
+        x->block[i].quant = cpi->UVquant[QIndex];
+        x->block[i].quant_fast = cpi->UVquant_fast[QIndex];
+        x->block[i].quant_shift = cpi->UVquant_shift[QIndex];
+        x->block[i].zbin = cpi->UVzbin[QIndex];
+        x->block[i].round = cpi->UVround[QIndex];
+        x->e_mbd.block[i].dequant = cpi->common.UVdequant[QIndex];
+        x->block[i].zrun_zbin_boost = cpi->zrun_zbin_boost_uv[QIndex];
+        x->block[i].zbin_extra = (short)zbin_extra;
+    }
+
+    // Y2
+    zbin_extra = ( cpi->common.Y2dequant[QIndex][1] *
+                   ( (cpi->zbin_over_quant / 2) +
+                     cpi->zbin_mode_boost +
+                     x->act_zbin_adj ) ) >> 7;
+
+    x->block[24].quant_fast = cpi->Y2quant_fast[QIndex];
+    x->block[24].quant = cpi->Y2quant[QIndex];
+    x->block[24].quant_shift = cpi->Y2quant_shift[QIndex];
+    x->block[24].zbin = cpi->Y2zbin[QIndex];
+    x->block[24].round = cpi->Y2round[QIndex];
+    x->e_mbd.block[24].dequant = cpi->common.Y2dequant[QIndex];
+    x->block[24].zrun_zbin_boost = cpi->zrun_zbin_boost_y2[QIndex];
+    x->block[24].zbin_extra = (short)zbin_extra;
+
+    /* save this macroblock QIndex for vp8_update_zbin_extra() */
+    x->q_index = QIndex;
+}
+
+
+void vp8_update_zbin_extra(VP8_COMP *cpi, MACROBLOCK *x)
+{
+    int i;
+    int QIndex = x->q_index;
+    int zbin_extra;
+
+    // Y
+    zbin_extra = ( cpi->common.Y1dequant[QIndex][1] *
+                   ( cpi->zbin_over_quant +
+                     cpi->zbin_mode_boost +
+                     x->act_zbin_adj ) ) >> 7;
+    for (i = 0; i < 16; i++)
+    {
+        x->block[i].zbin_extra = (short)zbin_extra;
+    }
+
+    // UV
+    zbin_extra = ( cpi->common.UVdequant[QIndex][1] *
+                   ( cpi->zbin_over_quant +
+                     cpi->zbin_mode_boost +
+                     x->act_zbin_adj ) ) >> 7;
+
+    for (i = 16; i < 24; i++)
+    {
+        x->block[i].zbin_extra = (short)zbin_extra;
+    }
+
+    // Y2
+    zbin_extra = ( cpi->common.Y2dequant[QIndex][1] *
+                   ( (cpi->zbin_over_quant / 2) +
+                     cpi->zbin_mode_boost +
+                     x->act_zbin_adj ) ) >> 7;
+
+    x->block[24].zbin_extra = (short)zbin_extra;
+}
+
+
+void vp8cx_frame_init_quantizer(VP8_COMP *cpi)
+{
+    // Clear Zbin mode boost for default case
+    cpi->zbin_mode_boost = 0;
+
+    // MB level quantizer setup
+    vp8cx_mb_init_quantizer(cpi, &cpi->mb);
+}
+
+
+void vp8_set_quantizer(struct VP8_COMP *cpi, int Q)
+{
+    VP8_COMMON *cm = &cpi->common;
+    MACROBLOCKD *mbd = &cpi->mb.e_mbd;
+    int update = 0;
+    int new_delta_q;
+    cm->base_qindex = Q;
+
+    /* if any of the delta_q values are changing update flag has to be set */
+    /* currently only y2dc_delta_q may change */
+
+    cm->y1dc_delta_q = 0;
+    cm->y2ac_delta_q = 0;
+    cm->uvdc_delta_q = 0;
+    cm->uvac_delta_q = 0;
+
+    if (Q < 4)
+    {
+        new_delta_q = 4-Q;
+    }
+    else
+        new_delta_q = 0;
+
+    update |= cm->y2dc_delta_q != new_delta_q;
+    cm->y2dc_delta_q = new_delta_q;
+
+
+    // Set Segment specific quatizers
+    mbd->segment_feature_data[MB_LVL_ALT_Q][0] = cpi->segment_feature_data[MB_LVL_ALT_Q][0];
+    mbd->segment_feature_data[MB_LVL_ALT_Q][1] = cpi->segment_feature_data[MB_LVL_ALT_Q][1];
+    mbd->segment_feature_data[MB_LVL_ALT_Q][2] = cpi->segment_feature_data[MB_LVL_ALT_Q][2];
+    mbd->segment_feature_data[MB_LVL_ALT_Q][3] = cpi->segment_feature_data[MB_LVL_ALT_Q][3];
+
+    /* quantizer has to be reinitialized for any delta_q changes */
+    if(update)
+        vp8cx_init_quantizer(cpi);
+
+}
diff --git a/vp8/encoder/quantize.h b/vp8/encoder/quantize.h
index e4c32a570..d9a041071 100644
--- a/vp8/encoder/quantize.h
+++ b/vp8/encoder/quantize.h
@@ -55,4 +55,11 @@ extern void vp8_quantize_mb(MACROBLOCK *x);
 extern void vp8_quantize_mbuv(MACROBLOCK *x);
 extern void vp8_quantize_mby(MACROBLOCK *x);
 
+struct VP8_COMP;
+extern void vp8_set_quantizer(struct VP8_COMP *cpi, int Q);
+extern void vp8cx_frame_init_quantizer(struct VP8_COMP *cpi);
+extern void vp8_update_zbin_extra(struct VP8_COMP *cpi, MACROBLOCK *x);
+extern void vp8cx_mb_init_quantizer(struct VP8_COMP *cpi, MACROBLOCK *x);
+extern void vp8cx_init_quantizer(struct VP8_COMP *cpi);
+
 #endif